Newton’s second law is F=ma, which means that the force is equal to the mass and acceleration. Newton’s second Law also has to do with Net Forces. A net force is pressuring against the bridge, the net force has to be zero so that it can come to an equilibrium. Newton’s third law states, for every reaction there is an equal or opposite reaction. If something is on the bridge the bridge has to apply the same force.
By measuring the angles of diffraction and by calculating the grating spacing, the wavelength of the light may be calculated. The light source used in the experiment should be a monochromatic light source as the experiment requires light of a single wavelength in order for the wavelength to be calculated. The second part of the experiment demonstrates how to determine the measurement of the groove spacing of a CD. The CD is used as a reflective grating; the light is reflected from the surface of the cd some of the reflected angles will give rise to constructive maxima, similar to a diffraction grating. The last part of the experiment is to determine the measurement of the diameter of powder spores by passing a monochromatic light source through a circular aperture and producing a diffraction pattern of concentric rings.
Then I drew a semi-circle on the top of the intersection representing the flexi glass and placed the flexi glass over the semi-circle. 4. Plugged in the ray box to a power source and using the single slit barrier, I placed the light ray along the normal to ensure that the light is not bent at this point. 5. I then placed the ray box allowing the light ray travels along the 10° then marked the refracted light on the glass.
The more mass taken away, the quicker it will vibrate. Theory: Oscillation is a way of returning a system to its equilibrium position, the stable position where there is no net force acting on it. Once a system is thrown off balance, it does not return to is original state; it oscillates back and forth about the equilibrium position. The movement of an oscillating body is called harmonic motion. The oscillating motion of a spring is caused by the stretching or compression of it.
Newton’s Law of Motion Newton’s law of motion consists of three physical laws and explains the connection between a mass and a force acting upon it, and its motion in response to that force. 1. “Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it” Newton’s first law of motion is essentially Galileo’s concept of inertia, and is moving object tends to stay in motion, with the same direction and speed. For motion (or lack of motion) to change it requires an unbalanced force acting on it. If you're going in a specific direction, you will always go in that direction unless something happens to you.
Stunting is where one to three others, bases, hold up a top girl, a flyer, so she can perform tricks high in the air. In competitive cheerleading, stunt is required in a routine. It makes up 80% of the two minute and thirty second routine. This aspect fulfills the requirement of propelling a mass through space and also overcoming the resistance of mass. When holding the top girl, the bases are restating her body weight and mass, to keep her up.
Practical Activity- Waves in One Dimension Outcomes: 1.2, 1.5, 1.7, 1.8 Aim: How are one dimensional waves produced in a slinky spring? What are the properties of one dimensional waves? Risk Assessment: Identify Risk | Rating | Minimisation | Tripping over the slinky spring | Low | Ensure you are conducting the experiment a good distance away from others. | Skin Caught in the coils of the slinky spring | Low | Hold the Slinky spring with a firm grip | Recoil from the Slinky spring | Low | Do not release the slinky spring while stretched | Procedure: 1) Pair up with a partner, each holding the last or second last coils of slinky spring 2) Separate from each other, whilst still holding the slinky spring until the slinky is stretched out a reasonable amount. 3) Both you and your partner must kneel down as the experiment is best conducted on the floor 4) Decide on who will produce the waves first as both cannot be sending waves at the same time 5) For the first wave (longitudinal), one partner pushes the slinky towards the other partner, and repeatedly keeps doing so with constant force and motion, to produce the longitudinal wave.
In static equilibrium, a body is not moving. Then the acceleration is zero and from Newton's second law the net force must also be zero. A Force table is a common physics lab equipment that has three or more chains or cables attached to a center ring. The chains or cables apply forces upon the center ring in three different directions. Usually the experimenter adjusts the direction of the three forces, makes measurements of the amount of force in each direction, and determines the vector sum of three forces.
Pendulum Aim: To investigate the time for 1 oscillation for different lengths of pendulum and different masses for the pendulum bobs Hypothesis: The time taken for oscillation is proportional to the lengths of the pendulums Apparatus: * A retort stand * Strings * Masses( big, medium and small balls) * Metre ruler * Stopwatch Procedure: 1. Fix the iron stand on the bench 2. Hang the mass on the end of strings and the iron stand 3. Measure the lengths of pendulum with the metre rule 4. Displace the masses to cause oscillation 5.
The permanent magnet is fixed firmly into position whereas the electromagnet is mobile. As pulses of electricity pass through the coil of the electromagnet, the direction of its magnetic field is rapidly changed. This means that it is in turn attracted to and repelled from the permanent magnet, vibrating back and forth. The electromagnet is attached to a cone made of a flexible material such as paper or plastic which amplifies these vibrations, pumping sound waves into the surrounding air and towards your ears. Inside a speaker: 1.